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Answers to the following questions can be found on page ▪▪▪.
Select one best answer from the following:
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Seborrhoeic dermatitis
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Scalp psoriasis
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Kerion celsi
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Trichotillomania
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Alopecia areata
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Tinea capitis
Question 1
Case 1: A 5-year-old boy presented with a 30-day history of an asymptomatic area of brittle, lustreless hair, which broke easily after emergence from the scalp. He had no significant past medical history. His family had acquired a domestic cat 2 months previously, which was healthy and had normal fur. On examination, a 5×5 cm area in the parieto-occipital region showed thin and white scales, with tonsured and easily removed hair (figure 1).
Question 2
Case 2: An otherwise healthy 5-year-old girl had a 3-month history of localised hair rarefaction. No local symptoms or previous lesions were reported. She had been living in a household with cats for 6 months. Examination of the skin showed a 10×6 cm area of thin and sparse hair of many different lengths in the right parietal region. The hair-pull test was negative. The scalp was smooth and non-scaly (figure 2).
Footnotes
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Funding CNPq funded this work.
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Competing interests None.
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Patient consent Obtained.
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Ethics approval Ethics Committee of the Hospital de Clínicas, Federal University of Paraná-Curitiba-Paraná-Brazil.
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Provenance and peer review Not commissioned; internally peer reviewed.